How to reproduce : 

1 - Create a site catalog and configure it following https://docs.ametys.org/fr/ametys-workspaces/integration-et-parametrage-des-espaces-projets/mise-en-place-du-site-catalogue/configuration-du-site-catalogue.html

2 - Connect on site, and create an index page

=> page is created but following error is displayed : 
org.apache.jackrabbit.spi.commons.query.xpath.TokenMgrError: Lexical error at line 1, column 21. Encountered: "," (44), after : ""
at org.apache.jackrabbit.spi.commons.query.xpath.XPathTokenManager.getNextToken(XPathTokenManager.java:13348)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.jj_ntk(XPath.java:9190)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ElementTest(XPath.java:8738)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.KindTest(XPath.java:8117)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.NodeTest(XPath.java:5038)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.AbbrevForwardStep(XPath.java:4888)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ForwardStep(XPath.java:4744)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.AxisStep(XPath.java:4689)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.StepExpr(XPath.java:4594)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.RelativePathExpr(XPath.java:4508)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.PathExpr(XPath.java:4414)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ValueExpr(XPath.java:4122)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.UnaryExpr(XPath.java:4029)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.CastExpr(XPath.java:3932)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.CastableExpr(XPath.java:3895)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.TreatExpr(XPath.java:3858)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.InstanceofExpr(XPath.java:3821)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.IntersectExceptExpr(XPath.java:3745)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.UnionExpr(XPath.java:3669)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.MultiplicativeExpr(XPath.java:3583)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.AdditiveExpr(XPath.java:3507)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.RangeExpr(XPath.java:3448)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ComparisonExpr(XPath.java:3350)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.AndExpr(XPath.java:3287)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.OrExpr(XPath.java:3224)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ExprSingle(XPath.java:2211)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ForClause(XPath.java:2334)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.FLWORExpr(XPath.java:2230)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.ExprSingle(XPath.java:2130)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.Expr(XPath.java:2091)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.QueryBody(XPath.java:2063)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.MainModule(XPath.java:512)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.Module(XPath.java:387)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.QueryList(XPath.java:151)
at org.apache.jackrabbit.spi.commons.query.xpath.XPath.XPath2(XPath.java:118)
at org.apache.jackrabbit.spi.commons.query.xpath.XPathQueryBuilder.<init>(XPathQueryBuilder.java:300)
at org.apache.jackrabbit.spi.commons.query.xpath.XPathQueryBuilder.createQuery(XPathQueryBuilder.java:336)
at org.apache.jackrabbit.spi.commons.query.xpath.QueryBuilder.createQueryTree(QueryBuilder.java:39)
at org.apache.jackrabbit.spi.commons.query.QueryParser.parse(QueryParser.java:57)
at org.apache.jackrabbit.core.query.lucene.QueryImpl.<init>(QueryImpl.java:91)
at org.apache.jackrabbit.core.query.lucene.SearchIndex.createExecutableQuery(SearchIndex.java:736)
at org.apache.jackrabbit.core.query.QueryImpl.init(QueryImpl.java:115)
at org.apache.jackrabbit.core.SearchManager.createQuery(SearchManager.java:243)
at org.apache.jackrabbit.core.query.QueryManagerImpl$QueryFactoryImpl$2.createQuery(QueryManagerImpl.java:222)
at org.apache.jackrabbit.core.query.CompoundQueryFactory.createQuery(CompoundQueryFactory.java:67)
at org.apache.jackrabbit.core.query.QueryManagerImpl$2.perform(QueryManagerImpl.java:95)
at org.apache.jackrabbit.core.query.QueryManagerImpl$2.perform(QueryManagerImpl.java:91)
at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
at org.apache.jackrabbit.core.query.QueryManagerImpl.perform(QueryManagerImpl.java:197)
at org.apache.jackrabbit.core.query.QueryManagerImpl.createQuery(QueryManagerImpl.java:91)
at org.ametys.plugins.repository.AmetysObjectResolver.query(AmetysObjectResolver.java:678)
at org.ametys.web.repository.page.PageDAO._computePagesIds(PageDAO.java:1767)
at org.ametys.web.repository.page.PageDAO.lambda$0(PageDAO.java:1749)
at org.ametys.plugins.core.impl.cache.GuavaCache$2.call(GuavaCache.java:144)
at org.ametys.plugins.core.impl.cache.GuavaCache$2.call(GuavaCache.java:1)
at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4876)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3529)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2278)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2155)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2045)
at com.google.common.cache.LocalCache.get(LocalCache.java:3951)
at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4871)
at org.ametys.plugins.core.impl.cache.GuavaCache.get(GuavaCache.java:139)
at org.ametys.web.repository.page.PageDAO.findPagedIdsByTag(PageDAO.java:1749)
at org.ametys.web.transformation.xslt.AmetysXSLTHelper.findPagesIdsByTag(AmetysXSLTHelper.java:1642)
at org.ametys.web.transformation.xslt.AmetysXSLTHelper.findPagesIdsByTag(AmetysXSLTHelper.java:1628)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:367)
at org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:440)
at org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:222)
at org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:475)
at org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:208)
at org.apache.xpath.XPath.execute(XPath.java:337)
at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:280)
at org.apache.xalan.templates.ElemVariable.execute(ElemVariable.java:248)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:394)
at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:248)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:394)
at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:248)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:394)
at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:248)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:1376)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:394)
at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:248)
at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2402)
at org.apache.xalan.transformer.TransformerImpl.transformToRTF(TransformerImpl.java:1990)
at org.apache.xalan.transformer.TransformerImpl.transformToGlobalRTF(TransformerImpl.java:1935)
at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:310)
at org.apache.xalan.templates.XUnresolvedVariable.execute(XUnresolvedVariable.java:126)
at org.apache.xpath.VariableStack.getGlobalVariable(VariableStack.java:479)
at org.apache.xpath.operations.Variable.execute(Variable.java:214)
at org.apache.xpath.operations.Variable.execute(Variable.java:188)
at org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:199)
at org.apache.xpath.XPath.execute(XPath.java:337)
at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:280)
at org.apache.xalan.templates.XUnresolvedVariable.execute(XUnresolvedVariable.java:126)